try { testAvailability("java.util.regex.Matcher"); return createRegexpInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpRegexp"); } catch (BuildException be) { cause = orCause(cause, be, JavaEnvUtils.getJavaVersionNumber() < 14); } try { testAvailability("org.apache.oro.text.regex.Pattern"); return createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaOroRegexp"); } catch (BuildException be) { cause = orCause(cause, be, true); } try { testAvailability("org.apache.regexp.RE"); return createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaRegexpRegexp"); } catch (BuildException be) { cause = orCause(cause, be, true); } throw new BuildException( "No supported regular expression matcher found" + (cause != null ? ": " + cause : ""), cause);
try { testAvailability("java.util.regex.Matcher"); return createInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpMatcher"); } catch (BuildException be) { cause = orCause(cause, be, JavaEnvUtils.getJavaVersionNumber() < 14); } try { testAvailability("org.apache.oro.text.regex.Pattern"); return createInstance("org.apache.tools.ant.util.regexp.JakartaOroMatcher"); } catch (BuildException be) { cause = orCause(cause, be, true); } try { testAvailability("org.apache.regexp.RE"); return createInstance("org.apache.tools.ant.util.regexp.JakartaRegexpMatcher"); } catch (BuildException be) { cause = orCause(cause, be, true); } throw new BuildException( "No supported regular expression matcher found" + (cause != null ? ": " + cause : ""), cause);
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/regexp/RegexpFactory.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/regexp/RegexpMatcherFactory.java
Method name: Regexp newRegexp(Project) Method name: RegexpMatcher newRegexpMatcher(Project)
Number of AST nodes: 10 Number of AST nodes: 10
1
try {
1
try {
2
            testAvailability("java.util.regex.Matcher");
2
            testAvailability("java.util.regex.Matcher");
3
            return createRegexpInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpRegexp");
3
            return createInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpMatcher");
4
        } catch (BuildException be) {
4
        } catch (BuildException be) {
5
            cause = orCause(cause, be, JavaEnvUtils.getJavaVersionNumber() < 14);
5
            cause = orCause(cause, be, JavaEnvUtils.getJavaVersionNumber() < 14);
6
        }
6
        }
7
        try {
7
        try {
8
            testAvailability("org.apache.oro.text.regex.Pattern");
8
            testAvailability("org.apache.oro.text.regex.Pattern");
9
            return createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaOroRegexp");
9
            return createInstance("org.apache.tools.ant.util.regexp.JakartaOroMatcher");
10
        } catch (BuildException be) {
10
        } catch (BuildException be) {
11
            cause = orCause(cause, be, true);
11
            cause = orCause(cause, be, true);
12
        }
12
        }
13
        try {
13
        try {
14
            testAvailability("org.apache.regexp.RE");
14
            testAvailability("org.apache.regexp.RE");
15
            return createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaRegexpRegexp");
15
            return createInstance("org.apache.tools.ant.util.regexp.JakartaRegexpMatcher");
16
        } catch (BuildException be) {
16
        } catch (BuildException be) {
17
            cause = orCause(cause, be, true);
17
            cause = orCause(cause, be, true);
18
        }
18
        }
19
        throw new BuildException(
19
        throw new BuildException(
20
            "No supported regular expression matcher found"
20
            "No supported regular expression matcher found"
21
            + (cause != null ? ": " + cause : ""), cause);
21
            + (cause != null ? ": " + cause : ""), cause);
Summary
Number of common nesting structure subtrees1
Number of refactorable cases1
Number of non-refactorable cases0
Time elapsed for finding largest common nesting structure subtrees (ms)1.1
Clones locationClones are in different classes having the same super class
Number of node comparisons58
  1. {Refactorable}
    Mapping Summary
    Number of mapped statements10
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)54.9
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    8
    try
    8
    try
    9
    testAvailability("java.util.regex.Matcher");
    9
    testAvailability("java.util.regex.Matcher");
    10
    return createRegexpInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpRegexp");
    10
    return createRegexpInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpRegexp");
    10
    return createInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpMatcher");
    Differences
    Expression1Expression2Difference
    "org.apache.tools.ant.util.regexp.Jdk14RegexpRegexp""org.apache.tools.ant.util.regexp.Jdk14RegexpMatcher"LITERAL_VALUE_MISMATCH
    createRegexpInstancecreateInstanceMETHOD_INVOCATION_NAME_MISMATCH
    Preondition Violations
    Expression createRegexpInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpRegexp") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    Expression createInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpMatcher") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    10
    return createInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpMatcher");
    11
    try
    11
    try
    12
    testAvailability("org.apache.oro.text.regex.Pattern");
    12
    testAvailability("org.apache.oro.text.regex.Pattern");
    13
    return createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaOroRegexp");
    13
    return createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaOroRegexp");
    13
    return createInstance("org.apache.tools.ant.util.regexp.JakartaOroMatcher");
    Differences
    Expression1Expression2Difference
    "org.apache.tools.ant.util.regexp.JakartaOroRegexp""org.apache.tools.ant.util.regexp.JakartaOroMatcher"LITERAL_VALUE_MISMATCH
    createRegexpInstancecreateInstanceMETHOD_INVOCATION_NAME_MISMATCH
    Preondition Violations
    Expression createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaOroRegexp") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    Expression createInstance("org.apache.tools.ant.util.regexp.JakartaOroMatcher") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    13
    return createInstance("org.apache.tools.ant.util.regexp.JakartaOroMatcher");
    14
    try
    14
    try
    15
    testAvailability("org.apache.regexp.RE");
    15
    testAvailability("org.apache.regexp.RE");
    16
    return createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaRegexpRegexp");
    16
    return createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaRegexpRegexp");
    16
    return createInstance("org.apache.tools.ant.util.regexp.JakartaRegexpMatcher");
    Differences
    Expression1Expression2Difference
    "org.apache.tools.ant.util.regexp.JakartaRegexpRegexp""org.apache.tools.ant.util.regexp.JakartaRegexpMatcher"LITERAL_VALUE_MISMATCH
    createRegexpInstancecreateInstanceMETHOD_INVOCATION_NAME_MISMATCH
    Preondition Violations
    Expression createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaRegexpRegexp") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    Expression createInstance("org.apache.tools.ant.util.regexp.JakartaRegexpMatcher") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    16
    return createInstance("org.apache.tools.ant.util.regexp.JakartaRegexpMatcher");
    17
    throw new BuildException("No supported regular expression matcher found" + (cause != null ? ": " + cause : ""), cause);
    17
    throw new BuildException("No supported regular expression matcher found" + (cause != null ? ": " + cause : ""), cause);
    Precondition Violations (6)
    Row Violation
    1Expression createRegexpInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpRegexp") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    2Expression createInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpMatcher") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    3Expression createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaOroRegexp") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    4Expression createInstance("org.apache.tools.ant.util.regexp.JakartaOroMatcher") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    5Expression createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaRegexpRegexp") is a method call throwing exception(s) that should be caught by a try block that will be extracted
    6Expression createInstance("org.apache.tools.ant.util.regexp.JakartaRegexpMatcher") is a method call throwing exception(s) that should be caught by a try block that will be extracted